The preliminary report--two-thirds of which consists of tabular data--describes an early identification system used in London, Ontario (Canada) for kindergarten and first grade high risk students, and provides some data bearing on the internal consistency and concurrent validity of the system. Simple descriptive summaries of some characteristics of 5,413 students who were screened by the system are presented. High risk students were more likely than other students to be boys, in grade 1, over age for grade, and on the active caseload of the speech and language teachers. (Author/DLS)